I had a sudden whiff of mint working this puzzle. I just saw the comment below as I was typing this. It was weird to smell this puzzle. First time that has ever happened. There is no mint in the house.

Have both of these in the car at all times. Husband likes the peppermint one and I like the spearmint ones. When driving these can wet your whistle instead of drinking a lot of water and not be able to find a bathroom.